MAC_VLANIR
XGMAC_IOWRITE_BITS(pdata, MAC_VLANIR, CSVL, 0);
XGMAC_IOWRITE_BITS(pdata, MAC_VLANIR, VLTI, 1);
regval = readl(pdata->mac_regs + MAC_VLANIR);
writel(regval, pdata->mac_regs + MAC_VLANIR);